Subtract 90/20 from 25/30
1st number: 25/30, 2nd number: 4 10/20
25/30 - 90/20 is -11/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
25/30 = 25 × 2/30 × 2 = 50/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
90/20 = 90 × 3/20 × 3 = 270/60 - Subtract the two like fractions:
50/60 - 270/60 = 50 - 270/60 = -220/60 - After reducing the fraction, the answer is -11/3
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